HTML
Quiet Light is a light, peaceful theme for Espresso designed to not only help you read your code, but also enjoy it.
To install, simply move the file Quiet Light.css into your ~/Library/Application Support/Espresso/Themes/ folder and restart Espresso. It will then be available in the Preferences.
If you have git installed and wish to be able to keep Quiet Light up-to-date that way, run the following commands in Terminal:
mkdir -p ~/Library/Application\ Support/Espresso/Themes/
cd ~/Library/Application\ Support/Espresso/Themes/
git clone git://github.com/onecrayon/quiet-light.foam.git
ln -s quiet-light.foam/Quiet\ Light.css ./Quiet\ Light.css
You will then be able to update Quiet Light using a standard git pull:
cd ~/Library/Application\ Support/Espresso/Themes/quiet-light.foam/
git pull
Quiet Light has also been ported to Textmate and Emacs.
The theme is released under an MIT license, so if you wish to port it or modify it please feel free. If you do use or modify Quiet Light, I would love to hear about it.